df <- data.frame( id = c(rep("Rodney",5), rep("Sarah",5)),
Data = rnorm( 10, 42, 42),
Longitude = rnorm(10, -78, 1 ),
Latitude = rnorm(10, 37, 1) )
df id Data Longitude Latitude
1 Rodney 13.949899 -78.44814 38.24930
2 Rodney -7.099641 -77.75363 36.93811
3 Rodney 107.714647 -78.83435 36.46239
4 Rodney 65.505546 -77.10051 37.35242
5 Rodney 1.501342 -77.77865 36.81856
6 Sarah 42.510296 -78.15033 37.89910
7 Sarah 26.866653 -79.56341 37.62405
8 Sarah 80.559394 -78.37316 37.35191
9 Sarah 50.153114 -76.93191 38.07141
10 Sarah -23.997563 -74.76189 36.84952